ZyXEL Communications NBG-419N User Manual

Chapter 14 LAN

NBG-419N v2 User’s Guide

The actual physical connection determines whether the Router ports are LAN or WAN ports. There 
are two separate IP networks, one inside the LAN network and the other outside the WAN network 
as shown next.

LAN and WAN IP Addresses

The LAN parameters of the Router are preset in the factory with the following values:

• IP address of 192.168.1.1 with subnet mask of 255.255.255.0 (24 bits)
• DHCP server enabled with 32 client IP addresses starting from 192.168.1.33. 

These parameters should work for the majority of installations. If your ISP gives you explicit DNS 
server address(es), read the embedded Web Configurator help regarding what fields need to be 
configured.

The Router is pre-configured with a pool of 32 IP addresses starting from 192.168.1.33 to 
192.168.1.64. This configuration leaves 31 IP addresses (excluding the Router itself) in the lower 
range (192.168.1.2 to 192.168.1.32) for other server computers, for instance, servers for mail, 
FTP, TFTP, web, etc., that you may have.

The Router has built-in DHCP server capability that assigns IP addresses and DNS servers to 
systems that support DHCP client capability.

IP alias allows you to partition a physical network into different logical networks over the same 
Ethernet interface. The Router supports three logical LAN interfaces via its single physical Ethernet 
interface with the Router itself as the gateway for each LAN network.